Otto Graf GmbH
Plastic Products
Tel. +49 7641 589-0
Fax +49 7641 589-50
Carl-Zeiss-Straße 2-6
DE-79331 Teningen, Germany

Professional rainwater filters - optimum cleaning for any application

To save space, our internal filters are integrated in the tank. The external filters are installed in a robust plastic shaft. Due to the larger pipe cross-sections, they are also suited to particularly large roof areas or can be used for infiltration and pond systems, for example. 

Optimax-Industrial Filter external suitable for pedestrian loading

For roof surfaces up to 1,500 m²! External filter to clean the rainwater in large plants.

Efficient cleaning system with high water yield

Optimax-Pro Filter XL Internal

Minimal loss of height with maximum water yield!

Minimax-Filter® external suitable for pedestrian loading

Minimal height offset with maximum water yield!

Minimax-Pro Filter internal

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